My usual spreadsheet, people have said it's been useful in the past.
Price doesn't include shipping, import taxes if applicable or PSU's. Assumes static diff and BTC price, it's just to give a rough idea
Mining still dead in the UK at $0.23, and shipping to a host is probably going to be a year to breakeven when the inevitable diff rises happen so no new machines for me


Thx Tigggger. Very helpful.
I guess there's no way to include the halving in your calculation. So we need to be aware the BE time (aka ROI) is likely longer for each of the electrical rates in your chart. As a very rough estimate, my guess is we can add 25% to the length of time to ROI.